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Re: .htaccess a major bottleneck to Semantic Web adoption / Was: Re: RDFa vs RDF/XML and content negotiation

From: Martin Hepp (UniBW) <martin.hepp@ebusiness-unibw.org>
Date: Wed, 01 Jul 2009 17:51:15 +0200
Message-ID: <4A4B85F3.9050307@ebusiness-unibw.org>
To: Mark Birbeck <mark.birbeck@webbackplane.com>
CC: public-lod@w3.org, semantic-web at W3C <semantic-web@w3c.org>
Dear all:
Fyi - I am in contact with Google as for the clarification of what kind 
of empty div/span elements are considered acceptable in the context of 
RDFa. It may take a few days to get an official statement. Just so that 
you know it is being taken care of...

Martin



Mark Birbeck wrote:
> Hi Martin,
>
>   
>> b) download RDFa snippet that just represents the RDF/XML content (i.e. such
>> that it does not have to be consolidated with the "presentation level" part
>> of the Web page.
>>     
>
> By coincidence, I just read this:
>
>   Hidden div's -- don't do it!
>   It can be tempting to add all the content relevant for a rich snippet
>   in one place on the page, mark it up, and then hide the entire block
>   of text using CSS or other techniques. Don't do this! Mark up the
>   content where it already exists. Google will not show content from
>   hidden div's in Rich Snippets, and worse, this can be considered
>   cloaking by Google's spam detection systems. [1]
>
> Regards,
>
> Mark
>
> [1] <http://knol.google.com/k/google-rich-snippets/google-rich-snippets/32la2chf8l79m/1#>
>
>   

-- 
--------------------------------------------------------------
martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

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Received on Wednesday, 1 July 2009 16:03:13 UTC

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